Extract Column Names from Populations

Collects all data frame column names from one or more populations.

Usage

get_col_names(populations)

Arguments

populations

Population object or list of Population objects.

Value

character vector of unique population column names augmented with subject_id, enroll_time, drop_time, measurement_time, and time.

See also

Population.

Examples

pop1 <- Population$new(name = "P1", data = data.frame(
id = 1:10,
age = runif(10, 20, 60),
readout_time = 0
))
pop2 <- Population$new(name = "P2", data = data.frame(
id = 1:10,
weight = runif(10, 150, 250),
readout_time = 0
))
get_col_names(list(pop1, pop2))
#>  [1] "id"               "age"              "readout_time"     "arm"             
#>  [5] "weight"           "enroll_time"      "drop_time"        "subject_id"      
#>  [9] "measurement_time" "time"